169 lines
4.5 KiB
Markdown
169 lines
4.5 KiB
Markdown
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# micromark-util-symbol
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[![Build][build-badge]][build]
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[![Coverage][coverage-badge]][coverage]
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[![Downloads][downloads-badge]][downloads]
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[![Size][bundle-size-badge]][bundle-size]
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[![Sponsors][sponsors-badge]][opencollective]
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[![Backers][backers-badge]][opencollective]
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[![Chat][chat-badge]][chat]
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[micromark][] utility with symbols.
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## Contents
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* [What is this?](#what-is-this)
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* [When should I use this?](#when-should-i-use-this)
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* [Install](#install)
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* [Use](#use)
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* [API](#api)
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* [Types](#types)
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* [Compatibility](#compatibility)
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* [Security](#security)
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* [Contribute](#contribute)
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* [License](#license)
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## What is this?
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This package exposes constants used throughout the micromark ecosystem.
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## When should I use this?
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This package is useful when you are making your own micromark extensions.
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It’s useful to reference these constants by name instead of value while
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developing.
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[`micromark-build`][micromark-build] compiles them away for production code.
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## Install
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This package is [ESM only][esm].
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In Node.js (version 16+), install with [npm][]:
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```sh
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npm install micromark-util-symbol
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```
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In Deno with [`esm.sh`][esmsh]:
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```js
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import * as symbol from 'https://esm.sh/micromark-util-symbol@1'
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```
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In browsers with [`esm.sh`][esmsh]:
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```html
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<script type="module">
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import * as symbol from 'https://esm.sh/micromark-util-symbol@1?bundle'
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</script>
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```
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## Use
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```js
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import {codes, constants, types, values} from 'micromark-util-symbol'
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console.log(codes.atSign) // 64
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console.log(constants.characterReferenceNamedSizeMax) // 31
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console.log(types.definitionDestinationRaw) // 'definitionDestinationRaw'
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console.log(values.atSign) // '@'
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```
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## API
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This package exports the identifiers `codes`, `constants`, `types`, and
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`values`.
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There is no default export.
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Each identifier is an object mapping strings to values.
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See the code for the exposed data.
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## Types
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This package is fully typed with [TypeScript][].
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It exports no additional types.
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## Compatibility
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Projects maintained by the unified collective are compatible with maintained
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versions of Node.js.
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When we cut a new major release, we drop support for unmaintained versions of
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Node.
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This means we try to keep the current release line,
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`micromark-util-symbol@^2`, compatible with Node.js 16.
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This package works with `micromark@^3`.
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## Security
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This package is safe.
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See [`security.md`][securitymd] in [`micromark/.github`][health] for how to
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submit a security report.
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## Contribute
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See [`contributing.md`][contributing] in [`micromark/.github`][health] for ways
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to get started.
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See [`support.md`][support] for ways to get help.
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This project has a [code of conduct][coc].
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By interacting with this repository, organisation, or community you agree to
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abide by its terms.
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## License
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[MIT][license] © [Titus Wormer][author]
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<!-- Definitions -->
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[build-badge]: https://github.com/micromark/micromark/workflows/main/badge.svg
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[build]: https://github.com/micromark/micromark/actions
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[coverage-badge]: https://img.shields.io/codecov/c/github/micromark/micromark.svg
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[coverage]: https://codecov.io/github/micromark/micromark
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[downloads-badge]: https://img.shields.io/npm/dm/micromark-util-symbol.svg
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[downloads]: https://www.npmjs.com/package/micromark-util-symbol
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[bundle-size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=micromark-util-symbol
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[bundle-size]: https://bundlejs.com/?q=micromark-util-symbol
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[sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg
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[backers-badge]: https://opencollective.com/unified/backers/badge.svg
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[opencollective]: https://opencollective.com/unified
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[npm]: https://docs.npmjs.com/cli/install
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[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
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[esmsh]: https://esm.sh
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[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg
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[chat]: https://github.com/micromark/micromark/discussions
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[license]: https://github.com/micromark/micromark/blob/main/license
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[author]: https://wooorm.com
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[health]: https://github.com/micromark/.github
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[securitymd]: https://github.com/micromark/.github/blob/main/security.md
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[contributing]: https://github.com/micromark/.github/blob/main/contributing.md
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[support]: https://github.com/micromark/.github/blob/main/support.md
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[coc]: https://github.com/micromark/.github/blob/main/code-of-conduct.md
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[typescript]: https://www.typescriptlang.org
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[micromark]: https://github.com/micromark/micromark
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[micromark-build]: https://github.com/micromark/micromark/tree/main/packages/micromark-build
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